NSI Easy-Twist™ Wire Connector, 1-Conductor Winged Twist-On, Series: WWC Series, Winged/Twist-On Shell, Square Wire Spring, Copper Wire, 18 to 8 AWG Wire, 600 VAC, 105 deg C, Thermoplastic, Gray, 0.394 in ID x 1.31 in H x 1 in W

• Easy-Twist™ winged twist-on wire connectors have deep surface ridges to provide better grip
• Ergonomic, swept back wing design provides handling comfort and increased torque ability
• Flame-retardant UL 94V-2 thermoplastic shell provides excellent electrical insulation
• Threaded funnel entry guides the wires into the connector easily
• Zinc plated springs for low contact resistance
• Conical Spring The fixed zinc-plated square spring has a precise conical shape that grips in fewer turns and can dead end a single wire
• Ergonomic Grip Entire connector features a ribbed texture for easier twisting and a more secure gripping surface to increase your productivity
• Swept-Back Wings NSI connectors have longer wings than the competition with a swept-back design that provide a larger surface for comfortable and fast twisting
• Compact Design Easy to install in tight areas; the extra-thick cap, deep-skirt entry and threaded funnel make these connectors more reliable and protect against flashover and shorts
• Labor Saving Save time and effort with professional-quality connectors that install in half the time of a typical wire connector
• Labor Saving Save time and effort with professional-quality connectors that install in half the time of a typical wire connector and Don't require pre-twisting of wires

• Instruction/Installation Manual https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/NSI_WWC-T-D_Installation_Manual.pdf